I see this a lot on older houses.
Probably, but the only way to be sure is to test it in a lab.
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No taste test?
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Yes there is, but you’re going to report it as “suspected ACM”.
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Thanks everyone. BTW, the picture is taken from a InterNACHI webpage about Home Inspectors Guild to cleaning ducts; https://www.nachi.org/inspection-duct-cleaning-4.htm
Prolly should’nt lick that when You run across it much of it that vintage contains asbestos…
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I tested a chimney pipe with material similar to this out of curiosity and it turned out to be mostly mica…you never really know until you have it tested…
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